ArlyBaba 3D Pen Stereoscopic Printing Drawing Crafting Three-Dimensional Doodling Modeling ABS Filament Arts Printer Tool Yellow Prolonged use doesn't cause FLAC fatigue. The temperature adjustable design. Heating coil and a nozzle cartridge design. Intelligent standby- functional design. You can freely control it according to the hand speed, allowing users in the creation of real time 3D painting done most practically.